Highly sensitive and selective fluoride ion chemosensing, fluoroalkylated polysilane

被引：30
作者：
Saxena, A
Fujiki, M
Rai, R
Kim, SY
Kwak, G
机构：
[1] Nara Inst Sci & Technol, Grad Sch Mat Sci, Nara 6300101, Japan
[2] CREST, JST, Kawaguchi, Saitama 3320012, Japan
来源：
MACROMOLECULAR RAPID COMMUNICATIONS | 2004年 / 25卷 / 20期
关键词：
conformation; fluoride ion; fluoropolymers; luminescence; polysilanes; sensors;
D O I：
10.1002/marc.200400347
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
This paper reports a new and simple approach for the amplified detection of flouride ions by a polymer-based chemosensor made of stiff fluoroalkylated polysilane, poly(3,3,3-trifluoropropylmethylsilane). This chemosensor exhibited extreme sensitivity and selectivity towards fluoride ions by a decrease in the photoluminescence (PL) intensity with parts per billion concentration of flouride ions in solution in tetrahydrofuran (THF). The quenching constant for flouride ions (K = 1.35 x 10(7) m(-1)) was found to be exceptionally high.
引用
收藏
页码：1771 / 1775
页数：5
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